I would have to know what the actual numbers of your tests were.
"Normal" doesn't mean much.
There is even a Mystery Diagnosis episode about B12 being overlooked. A woman who suffered horribly for 10 YEARS before finding a doctor to help her. Her level was 200 all that time! I saw this episode on cable this holiday season, where one day they ran a marathon on Discovery Health channel all day.
You could also have other things going on, besides this one issue.
But with no actual number results, no one can really answer you here.
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All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
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Weezie looking at petunias 8.25.2017
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